A03b — Bird: Lasker, 3…Bg4

1.f4 d5 2.Nf3 Nf6 3.e3 Bg4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte e5, case forte g5, paire de fous.
Faiblesses adverses : Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (B1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nbd2 — Développer Nb1
● d3 — Libérer Bc1
● Bd3 — Développer Bf1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, case forte d5, avant-poste e4(C), Bg4 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bf8 enfermé, 4 pièces non développées (B8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Nbd7 — Développer Nb8
● ...Bd6 — Développer Bf8
● ...Bg4 — Clouer Nf3
● ...c6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A03b — Lasker

1.f4 d5 2.Nf3 Nf6 3.e3 Bg4

Eval: [-0.03]

Les coups candidats

4.Be2 — 40.4% (804 parties)

Ambassadeurs : Milnes, Anthony C P (9x), Just, Gabriele, Dr. (7x), Foch, Louis (6x), Wall, Bill (4x), Chaney, Ronald L (4x), Bester, Kazimierz (4x), Lindner, Jan-Joost (4x), Pregitzer, Gyorgy (4x)

4.b3 — 24.4% (485 parties)

Ambassadeurs : Hrnciar, Roman (10x), Capaliku, Aleks (6x), Brodie, Hugh (6x), Strohmann, Marcel (4x), Balducci, Alessandro (4x), Gultom, Paul (4x), Bross, Horst (3x), Sierra Jimenez, Manuel (3x)

4.h3 — 23.1% (460 parties)

Ambassadeurs : Ali, Mosaddeque (9x), Schmidt-Schaeffer, Sebastian, Dr. (7x), Heinola, Kari P. (6x), Babb, Jeff (5x), Sonnenberger, Joerg (4x), Bohn, Thomas, Dr. (4x), Keusch, Horst (4x), Kotz, Reinhard (4x)

4.d4 — 7.0% (139 parties)

Ambassadeurs : Antusch, Ingrid (9x), Smith, LL. (4x), Dantas, Carlos (3x), Bergmann, Josef (3x), Von Spreckelsen, Albert (2x), Peixoto Filho, Antonio De Souza (2x), Buchy, Daniel (2x), Palermo, Stefano (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4.Be2	4.b3	4.h3	4.d4
<1800	163	50%	20%	21%	6%
1800-2200	900	38%	26%	23%	7%
2200-2600	230	33%	22%	28%	8%
2600+	4	—	75%	25%	—

Évolution par décennie (% des parties)

Décennie	N parties	4.Be2	4.b3	4.h3	4.d4
1890s	2	—	100%	—	—
1900s	2	—	50%	50%	—
1910s	4	75%	—	25%	—
1920s	13	38%	23%	38%	—
1930s	11	27%	45%	18%	—
1940s	8	62%	12%	12%	12%
1950s	21	57%	19%	19%	—
1960s	29	62%	21%	10%	7%
1970s	30	60%	27%	3%	10%
1980s	85	34%	25%	25%	8%
1990s	396	36%	26%	21%	12%
2000s	721	40%	26%	22%	5%
2010s	620	41%	22%	26%	6%
2020s	49	39%	22%	27%	6%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4.Be2	41%	39%	▼ -2.7%
4.b3	22%	22%	▲ +0.5%
4.h3	26%	27%	+0.2%
4.d4	6%	6%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties
Alekhine, Alexander — 1 partie
Lasker, Emanuel — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

4.Be2 — 40.4% (804 parties)

1914 — Alekhine, Alexander vs ? — 1-0 — Stockholm Stockholm SWE
1914 — Reti, Richard vs Kaufmann, Arthur — 0-1 — Vienna Vienna AUT
1914 — Reti, Richard vs Kaufmann, Arthur — 0-1 — Vienna AUT
1920 — Tartakower, Savielly vs Gruenfeld, Ernst — 1/2-1/2 — Vienna quad
1922 — Dawson, George vs Ewing, John M — 1/2-1/2 — Victoria

4.b3 — 24.4% (485 parties)

1891 — Albin, Adolf vs Pollak, Siegmund — 1-0 — Vienna AUT
1895 — Vazquez, Andres C vs Taubenhaus, Jean — 1/2-1/2 — Havana CUB
1902 — Malthan, Friedrich vs Englund, Fritz — 1-0 — Hannover GER
1925 — Nimzowitsch, Aron vs Gruenfeld, Ernst — 1-0 — Marienbad CZE
1927 — Hromadka, Karel vs Treybal, Frantisek — 1/2-1/2 — Prague CZE

4.h3 — 23.1% (460 parties)

1903 — Agnivesh Albin vs Mieses, Jacques — 1-0 — Monte Carlo MNC
1913 — Lasker, Emanuel vs Muller, Oscar — 1-0 — London ENG
1925 — Nimzovich vs Grunfeld — 1-0 — Marienbad CZE
1927 — Nimzowitsch, Aron vs Kmoch, Hans — 1-0 — Kecskemet f I
1927 — Brinkmann, Albertus vs Kmoch G — 0-1 — Kecskemet HUN

4.d4 — 7.0% (139 parties)

1949 — Kauder, Hartmut vs Leyendecker, Klaus Guenter — 1-0 — Bad Klosterlausnitz
1963 — Von Spreckelsen, Albert vs Schoenmann, Wilhelm — 1-0 — Hamburg GER
1963 — Von Spreckelsen, Albert vs Besser, Hans — 1-0 — Nt Helmbrechts GER
1973 — Christiansen, Soren Molbaek vs Sorensen, Arne — 1/2-1/2 — Grenaa
1977 — Smith, Arthur vs Lein, Anatoly — 0-1 — US-op Columbus, OH USA

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d2→e3, e3→f4	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● e5 (2v0), ● g5 (2v0)	● e4 (2v0), ● d5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v0)	● d5 (2v0), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bg4		● Bg4 Actif (mob. 7)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, f1, a1, h1)	4 (b8, f8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Au centre !
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e3-e4, ● f4-f5	● …c7-c6, ● …c7-c5, ● …d5-d4, ● …e7-e6, ● …e7-e5

Partie
1903 Monte Carlo – Round 6 – Agnivesh Albin – 1-0 – Mieses, Jacques – G12 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. d4 Ne4 7. Bd3 f5 8. Nd2 e6 9. g3 Qf6 10. Nf1 O-O-O
1914 Vienna – Round 1 – Reti, Richard – 0-1 – Kaufmann, Arthur – G11 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 Nbd7 6. d4 e6 7. O-O c6 8. Bd2 Be7 9. c4 O-O 10. Qc2 Rc8
1922 Bad Pistyan – Round 11 – Tartakower, Savielly – 1/2-1/2 – Hromadka, Karel – G68 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 Bxf3 5. Bxf3 Nc6 6. d4 e6 7. O-O Na5 8. c3 Nc4 9. Qe2 c6 10. Nd2 Nxd2
1925 Marienbad – Round 7 – Nimzowitsch, Aron – 1-0 – Gruenfeld, Ernst – G40 1. e3 Nf6 2. f4 d5 3. Nf3 Bg4 4. b3 Nbd7 5. Bb2 e6 6. c4 Be7 7. h3 Bxf3 8. Qxf3 O-O 9. g4 Ne4 10. g5 c6
1927 Kecskemet f I – Round 2 – Nimzowitsch, Aron – 1-0 – Kmoch, Hans – G10 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. Nc3 e6 7. g4 Bb4 8. g5 Bxc3 9. bxc3 Ne4 10. d3 Nd6
1927 Prague Evony – Round 5 – Hromadka, Karel – 1/2-1/2 – Treybal, Frantisek – G9 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. b3 e6 5. Bb2 Be7 6. Bd3 Nbd7 7. h3 Bxf3 8. Qxf3 Nc5 9. O-O O-O 10. Be2 c6
1932 Berlin Ch – Round 7 – John Wilhelm – 1-0 – Elstner, Rudolf – G19 1. f4 Nf6 2. e3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. c4 e5 7. cxd5 e4 8. Qd1 Nxd5 9. g3 Bd6 10. Qb3 Nb4
1936 Mar del Plata – Round 14 – Concepcion Villegas, Bryan Uriel – 1/2-1/2 – Balparda, Julio – G98 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. b3 Nbd7 5. Bb2 e6 6. Be2 Bd6 7. Ne5 Bxe2 8. Qxe2 c5 9. O-O Qc7 10. Nxd7 Qxd7
1936 Nottingham – Round 1 – Tartakower, Savielly – 1/2-1/2 – Vidmar, Milan Sr – G49 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. c4 e6 5. Nc3 Nbd7 6. cxd5 exd5 7. Be2 c6 8. O-O Bxf3 9. Bxf3 Bb4 10. Qc2 O-O
1936 Podebrady – Round 1 – Skalicka, Karel – 0-1 – Pirc, Vasja – G27 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 c5 5. b3 Nc6 6. Bb2 e6 7. Ne5 Bxe2 8. Qxe2 Qc7 9. O-O Bd6 10. d4 Ne7
1938 USA Ch – Round 11 – Santasiere, Anthony – 1/2-1/2 – Hanauer, Milton Loeb – G32 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. d4 Ne4 7. Nd2 Ndf6 8. Bd3 Nxd2 9. Bxd2 e6 10. O-O Bd6
1942 Mar del Plata – Round 16 – Pelikan, Jan – 1-0 – Espina, Carlos – G136 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. Nc3 c6 7. d4 e6 8. Bd3 c5 9. O-O Be7 10. b3 Rc8
1950 OWL Ch – Round 10 – Von Baudissin, Georg Graf – 1-0 – Lachmann, Hans G – G27 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 Nbd7 6. c4 e5 7. O-O e4 8. Be2 dxc4 9. Bxc4 Nb6 10. Nc3 Qd7
1951 Hungary Ch – Round 1 – Gecsei, Istvan – 0-1 – Szily, Jozsef – G82 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. b3 Nbd7 5. Bb2 c6 6. Be2 Bxf3 7. Bxf3 Qc7 8. d3 e5 9. fxe5 Nxe5 10. O-O Bd6
1951 Vancouver – Round 1 – Bohatirchuk, Fedor – 1-0 – Anderson Anderson, Jose Guillermo – G23 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 Bxf3 5. Bxf3 Nbd7 6. d4 Ne4 7. c4 c6 8. cxd5 cxd5 9. O-O Ndf6 10. Nc3 Qd7
1952 HUN Ch 08th – Round 1 – Laszlo, Csaba – 1/2-1/2 – Sandor, Bela – G1 1. f4 Nf6 2. Nf3 d5 3. e3 Bg4 4. c4 c6 5. Nc3 e6 6. b3 Ne4 7. Bb2 Bb4 8. cxd5 exd5 9. Bd3 O-O 10. Bxe4 dxe4
1955 Buenos Aires – Round 6 – Pelikán, Jiří – 1-0 – Alcaraz Suarez, Juan Camilo – G12 1. f4 Nf6 2. Nf3 d5 3. e3 Bg4 4. b3 Nbd7 5. Bb2 c6 6. d3 e6 7. Nbd2 Qb6 8. Qe2 Bd6 9. h3 Bxf3 10. Nxf3 Qc7
1957 Wenen etc – Round 2 – Fuderer, Andrija – 1/2-1/2 – Sefc, Jan – G17 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. b3 e6 5. h3 Bxf3 6. Qxf3 Ne4 7. Rg1 Qf6 8. c3 Nd7 9. Bb2 Qg6 10. g4 Nd6
1958 Munich olm fin-A – Round 4 – Minev, Nikolay N – 1/2-1/2 – Schmid, Lothar – G30 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 Nbd7 5. Ne5 Bxe2 6. Qxe2 g6 7. b3 Bg7 8. Bb2 O-O 9. O-O c6 10. d3 Nxe5
1958 Portoroz Interzonal – Round 16 – Larsen, Benjamin Holsko – 1-0 – Petrosian, Tigran A. – G155 1. f4 Nf6 2. Nf3 d5 3. e3 Bg4 4. Be2 Nbd7 5. Ne5 Bxe2 6. Qxe2 e6 7. O-O Bd6 8. d4 O-O 9. Nd2 c5 10. c3 Rc8
1958 Portoroz Interzonal – Round 20 – Larsen, Benjamin Holsko – 0-1 – Pachman, Ludek – G193 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 Nbd7 6. Nc3 c6 7. d4 e6 8. a3 Be7 9. Bd3 O-O 10. Ne2 Ne8
1959 Candidates Tournament women – Round 9 – Eretova, Kveta – 1/2-1/2 – Keller-Hermann, Edith – G37 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. b3 Bxf3 5. Qxf3 e6 6. Bb2 Be7 7. d3 c6 8. Nd2 Qa5 9. Qe2 Nbd7 10. g3 O-O
1959 DEN Ch – Round 10 – Larsen, Bent Ravn – 1/2-1/2 – Pedersen, Eigil – G52 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 g6 6. c4 c6 7. d4 Bg7 8. Qb3 Qd7 9. Nc3 e6 10. Bd2 O-O
1960 Sarajevo – Round 2 – Larsen, Benjamin Holsko – 1/2-1/2 – Smailbegovic, Hasan – G19 1. f4 d5 2. Nf3 Bg4 3. e3 Nf6 4. Be2 Nbd7 5. O-O Bxf3 6. Bxf3 e5 7. d4 e4 8. Be2 Bd6 9. b3 Qe7 10. c4 c6
1961 Buenos Aires ch-ARG – Round 2 – Alonso-Lej De Las Casas, Fernando – 1-0 – Steinbaum, Fernando – G13 1. f4 Nf6 2. Nf3 d5 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 Nbd7 6. c4 c6 7. b3 e5 8. cxd5 cxd5 9. fxe5 Nxe5 10. O-O Bd6
1962 Zuerich Seniors – Round ? – Brinckmann, Alfred – 0-1 – Zimmermann, Otto – G28 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. b3 Ne4 7. g3 Be7 8. h4 Bf6 9. c3 c6 10. Bd3 Nd7
1963 Budapest ch-HUN – Round 1 – Szilagyi, Peter – 1-0 – Honfi, K. – G2 1. e3 Nf6 2. f4 d5 3. Nf3 Bg4 4. b3 Nbd7 5. Bb2 e6 6. Be2 Bxf3 7. Bxf3 Bd6 8. d3 e5 9. fxe5 Nxe5 10. Nd2 Qe7
1963 Hamburg BUE Cup – Round 7 – Von Spreckelsen, Albert – 1-0 – Schoenmann, Wilhelm – G7 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. d4 e6 5. Nbd2 c5 6. h3 Bxf3 7. Qxf3 Nc6 8. c3 h5 9. Bd3 Qc7 10. O-O O-O-O
1963 Nt Helmbrechts GER – Round 8 – Von Spreckelsen, Albert – 1-0 – Besser, Hans – G34 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. d4 e6 5. Nbd2 c5 6. c3 Bxf3 7. Qxf3 Nc6 8. Bd3 Qc7 9. O-O cxd4 10. exd4 Bd6
1963 Split ol women – Round 1 – Gresser, Gisela Kahn – 1-0 – Rinder, Elfriede – G4 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 e6 6. O-O c5 7. d3 Nc6 8. Qe1 Be7 9. Nc3 O-O 10. Kh1 d4
1963 Sweden – Round 11 – Ekenberg, Bengt – 1/2-1/2 – Skold, Kristian – G35 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Nc6 5. d4 Bxf3 6. Bxf3 e6 7. O-O Be7 8. Nd2 O-O 9. c3 Nb8 10. e4 dxe4
1964 SWE Ch – Round ? – Ekenberg, Bengt – 1/2-1/2 – Krantz, Kjell – G55 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 g6 6. c4 Qd7 7. Nc3 c6 8. Qe2 Bg7 9. d4 O-O 10. Bd2 Qe6
1966 Rubinstein Memorial 04th – Round 9 – Smederevac, Petar – 1-0 – Sliwa, Bogdan – G51 1. f4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Be2 Bxf3 5. Bxf3 Nc6 6. d4 e6 7. c4 Bb4+ 8. Nc3 Qd7 9. Qb3 a5 10. a4 Ne7
1967 DEN Ch – Round 6 – Blom, Kaj – 1-0 – Kolbak, Jens – G24 1. f4 Nf6 2. Nf3 d5 3. e3 Bg4 4. Be2 Nbd7 5. b3 Bxf3 6. Bxf3 e5 7. fxe5 Nxe5 8. Bb2 Bd6 9. O-O O-O 10. Nc3 c6
1968 Lugano ol (Men) qual-D – Round 1 – Wyss Roberto – 0-1 – Barcza, Gedeon – G18 1. f4 d5 2. e3 Nf6 3. Nf3 Bg4 4. Be2 Nbd7 5. b3 Bxf3 6. Bxf3 e5 7. fxe5 Nxe5 8. O-O Bd6 9. Bb2 c6 10. d3 Qc7

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